Recently, I kind of went a little overboard inks. Coming to me soon, several inks, including several from Pilot Iroshizuku line. Well, I am a true red bottled ink lover to my heart. Other than mixing hues of red ink and filling up my favorite fountain pen, I am not really experienced in actually testing inks for use. Do you simply fill up one fountain pen and use ink until no longer in the fountain pen, then change to another color? Do you just put enough to slightly give you some sense of the ink, maybe write with it a couple of lines, then discard? How do you play when you have a new batch of more than one ink and want to simply play by using in one or more sittings different hues of newly acquired inks? All suggestions welcome, I know if I am feeling giddy now, won't know where to begin when inks arrive.